Amwell, Ansells End, Ayot St Lawrence, Ayot St Peter, Ayres End, Batford, Birchwood, Blackmore End, Bower Heath, Bramfield, Bull's Green, Bullen's Green, Burnham Green, Codicote, Codicote Bottom, Cole Green, Coleman Green, Cooper's Green, Cromer Hyde, Danesbury, Datchworth, Datchworth Green, Digswell, Digswell Park, Digswell Water, Driver's End, Ellenbrook, Essendon, Gustard Wood, Haldens, Hall Grove, Handside, Harmer Green, Hatfield, Hatfield Garden Village, Hatfield Hyde, Hoo End, Jersey Farm, Kimpton, Knebworth, Labby Green, Lea Valley, Leasey Bridge, Lemsford, Letty Green, Mackerye End, Mardleybury, Marshalls Heath, Marshalswick, Mill Green, Nast Hyde, Nomansland, Nup End Green, Oaklands, Old Hatfield, Old Knebworth, Oxlease, Painter's Green, Panshanger, Peartree, Porter's End, Pottersheath, Rableyheath, Roe Green, Rusling End, Sandridge, Sherrardspark, Sleapshyde, Smallford, South Hatfield, Stanborough, Tewin, Tewin Wood, The Folly, The Frythe, The Node, The Ryde, Welwyn, Welwyn Garden City, West End, Wheathampstead, Whitwell, Woodhall, Woolmer Green